AL-KO BKS 2625 T Manual De Instrucciones página 51

Maintenance and storage
Sharpening the chain
The cutting elements must always be
well sharpened for reasons of safety and
efficiency.
Sharpening is required if:
The saw chips resemble sawdust.
Greater force is necessary for cutting.
The cut is not straight.
Vibration increases.
Fuel consumption increases.
WARNING!
If the saw chain is not adequately shar-
pened, the danger of kickback will be in-
creased.
If trained customer service personnel are asked
to sharpen the chain, they will be able to do this
with the appropriate tools for a minimum of mate-
rial removal and uniform sharpening of all teeth.
Sharpening the chain yourself is possible using
special round files with a diameter selected for the
individual type of chain (see "Chain maintenance
table") and if you have the necessary skill and ex-
perience to avoid damaging the teeth.
To sharpen the chain (Fig. 24):
1. Switch off the engine, release the chain brake
and clamp the bar firmly in a suitable vice with
the chain mounted, making sure that the chain
can move freely.
2. Tighten the chain if it is loose.
File diameter
Chain type
469850_d
3. Place the file in the corresponding guide and
4. Only perform a few strokes of the file and ex-
5. Reverse the position of the bar in the vice
6. Check that the limit tooth does not project bey-
7. After sharpening, clean away all filings and
The chain must be renewed if:
Chain maintenance table
The table shows the sharpness for various chain
types, but should not be interpreted as authorisa-
tion for using chains other than those which are
approved.
Top plate angle Down angle
Rotatio-
nal angle tion angle
of the tool of the tool
then guide the file through the opening of
the tooth making sure that you keep an even
angle according to the tooth profile.
clusively in the forwards direction, then repeat
the working step on all teeth in the same ori-
entation (right or left).
and repeat the working step on the remaining
teeth.
ond the checking tool, and file off any projec-
tion using a flat file, then round down the pro-
file.
dust, then lubricate the chain in an oil bath.
The length of the teeth is less than 5 mm;
The play on the links at the chain rivets is ex-
cessive.
The technical data of the chain and the
bar authorised for use with this machine
are stated in the "EC declaration of con-
formity" supplied with the machine.
WARNING!
For reasons of safety, no other types of
chain or bar are allowed to be used.
Head tilt
angle (55°)
Inclina- Side plate
angle
Depth gauge
setting
51